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7513998 |
“In-situ” ballast water treatment method
A method and system for ballast water treatment are provided. A vacuum is applied directly to an existing vent of a vessel's ballast water tank during the vessel's voyage. The applied vacuum is in...
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7494588 |
Wastewater purification system
An object of the present invention is to provide a control method, for a wastewater purification system, where the status of a wastewater purification system employing a batch activated sludge...
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7473365 |
Method and installation for the biological treatment of water using activated sludge and comprising aeration regulation
The biological water or wastewater treatment process described herein alternates aeration and anoxic phases during a water treatment process. According to one exemplary process, the water or...
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7455773 |
Package wastewater chemical/biological treatment method
A chemical/biological wastewater treatment plant method and apparatus employing rapid sludge chemical dewatering technology in conjunction with an environmental biological system for treating the...
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7455022 |
Wastewater ballast system and method
The invention discloses a wastewater ballast method that includes the steps of collecting wastewater, treating the collected wastewater, storing the treated wastewater, and discharging the treated...
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7452466 |
Method and apparatus for anaerobic digestion of biomasses and generation of biogas
A method and apparatus for an anaerobic digestion of biomasses with generation of biogas and sludge, wherein a hydrolyzation phase and a following fermentation of the biomass are included, wherein...
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7429329 |
Hybrid chemical/mechanical dewatering method for sewage treatment plants
A hybrid chemical/mechanical dewatering sewage treatment plant and method employing rapid sludge chemical dewatering technology in conjunction with slower conventional mechanical dewatering solids...
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7429328 |
Apparatus and methods for control of waste treatment processes
Waste-treatment processes are enhanced through generation and introduction of specific biological populations customized to perform or favor specific tasks either during the main process, for the...
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7416669 |
Biological nutrient removal process and process control system for same
The present disclosure describes an improved system and method for treating wastewater or other liquid. Furthermore, the present disclosure provides a control program for operating the system and...
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7407584 |
Regulating air velocity continuously injected into biological water treatment reactor
A method of treating wastewater wherein the biomass associated with the wastewater is subjected to simultaneous nitrification and denitrification in a single reactor. The method entails directing a...
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7314563 |
Membrane coupled activated sludge method and apparatus operating anoxic/anaerobic process alternately for removal of nitrogen and phosphorous
Disclosed are a membrane coupled activated sludge method and apparatus operating anoxic/anaerobic processes alternately for removal of nitrogen and phosporus, wherein nitrogen and phosphorous...
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7309432 |
System and method for eliminating sludge via ozonation
A system and method for the treatment and reduction of sludge via ozonation in a wastewater treatment process is disclosed. The sludge treatment system comprises: a sludge ozonation reactor coupled...
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7276165 |
Method and plant for biological treatment of aqueous effluents for purification thereof
The invention relates to a method for the biological treatment of effluents contaminated with impurities of urban or industrial origin, characterised in employing a single aeration tank ( 1 ) with...
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7255791 |
In situ method and apparatus for biodegradation of alkyl ethers and tertiary butyl alcohol
A method and apparatus for the in situ purification of aquifers contaminated with ethers and/or alcohols using a bacterial culture, a method of delivering the culture to the subsurface, and an...
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7208090 |
Wastewater treatment control
Wastewater treatment controls that maintain the ORP of a mixed liquor at a relatively stable value during a wastewater treatment process such as an aerated-anoxic wastewater treatment process. The...
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7179387 |
Treatment system and method for remediating a body of water
A method for remediating a body of water includes sequestering a sector of water within the body of water. A communications channel is established between the water sector and a supply site. The...
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7163629 |
System and method for enhanced wastewater treatment
Enhanced wastewater treatment utilizing directed energy to promote degradation of sludge is disclosed. The directed energy is delivered in a stream circulating to and from an anaerobic digester....
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7156998 |
Phased activated sludge system
The inventions describe a phased activated sludge treatment system that incorporates elements of batch treatment technology into a flow-through treatment process. Control of mixing and aeration...
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7153429 |
Method of optimizing influent conditions and chemical addition control for biological denitrification
A computer controlled system for denitrification of a wastewater stream. The system provides real time analysis of primary parameters effecting both denitrification and nitrification. A computer...
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7128009 |
Wastewater ballast system and method
The invention discloses a wastewater ballast method that includes the steps of collecting wastewater, treating the collected wastewater, storing the treated wastewater, and discharging the treated...
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7077959 |
Packaged wastewater treatment unit
A packaged wastewater treatment unit has a compact configuration into which all subcomponents may be integrally molded. The compactness of the unit results from the arrangement of the subcomponents...
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7059261 |
Wastewater ballast system and method
The invention discloses a wastewater ballast method that includes the steps of collecting wastewater, treating the collected wastewater, storing the treated wastewater, and discharging the treated...
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7052607 |
Bioreactor processing method within a tank internally chambered to sequentially perform biological treatment and membrane filtration
Wastewater is delivered to a single tank of a bioreactor system to undergo biological treatment. After undergoing such biological treatment, the wastewater is centrifugally separated outside the...
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7014769 |
Method for reducing nitrate concentration in wastewater
The present invention is a method for reducing the nitrate concentration in wastewater within a wastewater treatment apparatus configured to define an aeration zone and a quiescent zone or dilution...
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7005068 |
Method and apparatus for treating animal waste and wastewater
Novel methods and apparatuses are disclosed for the treatment of wastewater to reduce often associated offensive odors by promoting aerobic conditions through decreasing the amount of oxygen...
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6896806 |
Biological process for color reduction of pulp and paper effluent
The present invention relates to a bacterium strain of accession no. MTCC 5099, a process for the preparation of innoculum of the said strain, and a process for the reduction of color from pulp...
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6896804 |
System and method for remediation of waste
A system and method are provided for aerobic treatment of waste, such as animal or human waste. The method includes the continual introduction of microalgae. The high amounts of oxygen produced by...
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6881340 |
Wastewater trickle tower(s) controlling and grooming
A wastewater treatment apparatus has a manifold interconnecting two or more trickle towers to enable wastewater to be sequentially moved through the trickle towers in different selective sequences....
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6878280 |
Wastewater clarification methods and apparatus
The invention relates to a liquid clarifier useful for removing solids suspended in a wastewater stream. Settled biological solids are taken from the clarifier and combined in a mixing chamber with...
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6808630 |
System and method for AI controlling waste-water treatment by neural network and back-propagation algorithm
A system and method for controlling treatment of the sewage/waste water. The method includes measuring attributes of inflow water flowing into a sewage/waste water treatment plant, attributes of an...
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6808629 |
Method for effluent purification
A process for purifying wastewater including the step: a) rating the tanks and the aeration means on the basis of the lowest pollution load, referred to as the low load, which corresponds to the...
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6783679 |
Waste treatment process
An integrated process for the treatment of organic waste comprising the steps of subjecting said organic waste to biological digestion with recycle of biosolids; contacting the resulting mixture of...
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6743362 |
Sewage treatment process
A sewage treatment plant, on the liquid side, is operated so as to effect nitrification and denitrification within a single tank and simultaneously to remove water, without the need for separate...
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6723245 |
Method of using water soluble cationic polymers in membrane biological reactors
A method of conditioning an activated sludge in a membrane biological reactor comprising (i) adding to the activated sludge an effective amount of at least one water soluble cationic polymer to...
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6723242 |
Method and apparatus for processing organic chlorine compounds
In the method of processing an organic chlorine compound in accordance with the present invention, slurry containing fly ash K including dioxins are supplied from a pretreatment bath to a...
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6712970 |
Sewage treatment process with phosphorus removal
In the liquid side of sewage treatment process, a combination aerobic/anoxic stage is closely monitored such that phosphorus can be removed as well as nitrogen. As in a known process, the...
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6706518 |
Clearing waste water pipes or grease traps clogged with grease with a grease solvent
There is disclosed a method and apparatus for clearing waste water pipes and/or grease traps clogged with grease, with the method comprising the steps of: providing a dry agent comprising bacteria...
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6706171 |
Systems for treating wastewater in a series of filter-containing tanks
This invention relates to systems for treating wastewater and more particularly to removing nutrients from wastewater in a wastewater treatment system. Wastewater tanks, each having membrane...
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6663777 |
Apparatus, system, and process for anaerobic conversion of biomass slurry to energy
An improved digester apparatus converts wet carbonaceous biomass materials to biogas in a digestion unit operating at a controlled temperature and having a concentrator component and a pressure...
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6660164 |
Biochemically enhanced thermophlic treatment process
The present invention provides a process and apparatus for autothermal aerobic thermophilic treatment of high strength and high temperature wastes. Waste material is injected into a reactor vessel...
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6623641 |
Wastewater treatment process for nitrogen-deficient feed in controlled environment
This invention relates to a wastewater treatment process for treating nitrogen-deficient wastewater. The process enables the production of a low soluble nitrogen processed wastewater, and avoids...
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6616843 |
Submerged membrane bioreactor for treatment of nitrogen containing water
A single tank submerged membrane bioreactor for treating feed water having unacceptable levels of ammonia or total nitrogen has both a membrane scouring bubble supply and an oxygenating bubble...
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6609070 |
Fluid treatment apparatus
A fluid monitoring and control apparatus and method including providing a programmable and reprogrammable control unit comprising a display, user inputs, and input/output connections; placing a...
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6599423 |
High-efficiency processes for destruction of contaminants
The present invention relates to novel ex situ processes for simple and economical destruction of air, water, and soil contaminants using naturally occurring microorganisms that are widely...
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6576130 |
Absorption field reclamation and maintenance system
A wastewater absorption field reclamation and maintenance system, wherein effluent (wastewater) is oxygenated such that BOD is not reduced in the effluent, the oxygenated effluent being delivered...
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6572773 |
Nitrification process
The present invention concerns the field of nitrification of fluids, and particularly relates to the treatment of aqueous fluids to oxidize ammonia and nitrites to produce nitrates. One aspect of...
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6569336 |
Method, device and use of said method for biological elimination of metal elements present in an ionized state in water
The method, in which the water to be treated is partly oxygenated by a specific aeration carried out before percolation through a biofilter having a bacteria-supporting bed of filtering material,...
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6569335 |
Wastewater treatment control method and apparatus
The control method and apparatus of the present invention is directed for an activated sludge wastewater treatment process. Instrumentation for measuring suspended solids concentration in the...
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6551510 |
Method for treatment of organic material in a two-step anaerobic biochemical reactor
The present invention relates to a method for treatment of organic material, grown for energy production or being organic waste which is slurried, suspended or dissolved in liquid, in a two-step...
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6527956 |
Method for regulating aeration during waste water biological treatment
A process is disclosed for regulating the aeration in a biological wastewater treatment plant using a carbon removal stage, a nitrification stage and a denitrification stage. The process includes...
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